{photo region}
Camera block, as seen from the pupil direction (looking from pupil towards detector). F/5 tube at right, F/17 in center, LED reference pair toward left, and pupil viewer at extreme left.
Camera block oblique view, showing mount surface for one of the F/17 "dog-leg" mirrors.
Camera block with rough bores completed
F17 antireflection tube being faced off
F/17 antireflection tube system components. The V-peaked pieces at center each connect two circular tubes at the 90 deg turns produced by the dog-leg mirrors.
Fabrication jig for F/17 antireflection tubes